20430120044 has 12 divisors (see below), whose sum is σ = 37634431800. Its totient is φ = 9677425248.

The previous prime is 20430120041. The next prime is 20430120097. The reversal of 20430120044 is 44002103402.

It is a junction number, because it is equal to n+sod(n) for n = 20430119998 and 20430120025.

It is not an unprimeable number, because it can be changed into a prime (20430120041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134408609 + ... + 134408760.

It is an arithmetic number, because the mean of its divisors is an integer number (3136202650).

Almost surely, 2^20430120044 is an apocalyptic number.

It is an amenable number.

20430120044 is a deficient number, since it is larger than the sum of its proper divisors (17204311756).

20430120044 is a wasteful number, since it uses less digits than its factorization.

20430120044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268817392 (or 268817390 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20430120044 its reverse (44002103402), we get a palindrome (64432223446).

The spelling of 20430120044 in words is "twenty billion, four hundred thirty million, one hundred twenty thousand, forty-four".